If you maintain a sourdough starter, you know the guilt of discarding perfectly good starter each week. Sourdough discard cinnamon rolls are the perfect solution–they transform that waste into tender, swirled rolls with minimal extra effort. Unlike traditional cinnamon rolls that require multiple rises and overnight proofing, this cast iron version comes together in an afternoon and bakes beautifully in your skillet, creating rolls with crispy bottoms and soft centers.
How to Make Sourdough Discard Cinnamon Rolls
This recipe uses active sourdough discard (no need to feed it first) and requires just a few pantry staples. The dough comes together quickly, rises once while you prepare the filling, then bakes in a preheated cast iron pan for a golden, bakery-style result.
Ingredients
- 1 cup active sourdough discard, room temperature
- 2 cups all-purpose flour, plus more for dusting
- 1/4 cup granulated sugar
- 1/2 teaspoon salt
- 3 tablespoons softened butter, divided (2 for dough, 1 for filling)
- Filling: 1/3 cup brown sugar, 2 teaspoons ground cinnamon, 2 tablespoons softened butter
Method
Combine the dough base
In a mixing bowl, combine your room-temperature sourdough discard with flour, sugar, and salt. Stir until shaggy, then knead for 5-7 minutes by hand until the dough becomes smooth and elastic. Add the softened butter in small pieces, working it in completely until the dough is soft and cohesive.
Let dough rest and rise
Form the dough into a ball, place it in an oiled bowl, cover loosely with a kitchen towel or plastic wrap, and let it rise at room temperature for 45-60 minutes. The dough should increase in volume noticeably but won’t double like commercial yeast dough–sourdough rises more gently.
Prepare the filling
While dough rises, mix brown sugar and cinnamon in a small bowl. Have your softened butter ready. Preheat your oven to 375 degrees Fahrenheit and place an empty cast iron skillet inside to heat.
Roll and fill the dough
Turn risen dough onto a lightly floured surface and pat or roll it into a rectangle roughly 8 x 10 inches. Spread softened butter evenly across the entire surface, then sprinkle the cinnamon-sugar mixture over the butter, leaving a small border at the top edge.
Create the rolls
Starting from the long side nearest you, roll the dough tightly toward the far edge, creating a log. Pinch the seam to seal. Using a sharp knife or dental floss, cut the log into 8-10 equal pieces. Try to keep cuts clean rather than squishing the rolls.
Arrange in the hot skillet
Carefully remove the preheated cast iron from the oven using an oven mitt. Working quickly, place roll pieces cut-side up in the hot skillet, spacing them so they’re nearly touching but not packed. They’ll expand as they bake.
Bake until golden
Return the skillet to the oven and bake for 18-24 minutes, until the rolls are golden brown on top and the edges are set but the centers still have slight give. The cast iron will create lovely caramelized edges.
Cool and serve
Let rolls cool in the skillet for 5 minutes before turning out onto a wire rack or serving plate. For extra indulgence, dust with powdered sugar or drizzle with a simple glaze while still warm.
- For a tighter spiral with fewer gaps, use dental floss or thread to cut rolls instead of a knife–hold the floss taut and press down through the log rather than sawing.
- If your sourdough discard is very wet or runny, start with slightly less flour and add more if needed; discard consistency varies widely based on feeding ratios.
- Preheating the cast iron skillet is crucial–it gives rolls a caramelized, bakery-quality crust that you can’t achieve with a cold pan.
What to Look For in Cast Iron Cookware and Baking Tools
- Cast iron size and shape: A 10-12 inch round skillet is ideal for cinnamon rolls. Deeper skillets (3 inches) work better than shallow ones for even baking and to contain any filling that might escape.
- Seasoning and maintenance: Pre-seasoned cast iron requires minimal upkeep compared to bare cast iron. Look for pieces that are smooth and glossy from the factory to ensure even heat distribution and easier cleanup.
- Mixing bowls and measuring tools: Durable mixing bowls with stable bases prevent tipping during kneading, while accurate measuring cups and spoons ensure consistent results each bake.
- Dough-working tools: Bench scrapers and rolling pins with comfortable handles reduce hand fatigue when shaping dough. Non-stick surfaces minimize flour buildup and sticking.
Lodge Cast Iron 10.25 Inch Skillet
Best for: Home bakers seeking reliable cast iron for cinnamon rolls and everyday cooking
Lodge is America’s oldest continuously operating cast iron manufacturer. This 10.25-inch skillet is pre-seasoned and ready to use, with a smooth cooking surface perfect for even heat distribution. The slightly sloped sides make it easy to slide cinnamon rolls out, and its heavy-duty construction ensures it’ll last generations. Lodge cast iron heats consistently and develops a natural non-stick patina with use, making it an investment piece for any kitchen.
Check Current Price on Amazon →Amazon Basics Cast Iron 10-Inch Skillet
Best for: Budget-conscious bakers new to cast iron cooking
Amazon Basics delivers solid performance without the premium price tag. This 10-inch pre-seasoned skillet heats evenly and handles cinnamon rolls beautifully. While the finish isn’t quite as refined as heritage brands, it functions identically and costs a fraction of the price. Perfect for someone testing the cast iron method before investing in a luxury piece.
Check Current Price on Amazon →Le Creuset Enameled Cast Iron 10.25 Inch Skillet
Best for: Bakers who want cast iron without seasoning maintenance
Le Creuset’s enameled cast iron eliminates the maintenance routine of traditional cast iron while delivering superior heat retention. The colorful enamel coating makes these skillets beautiful enough to serve from at the table. Though pricier than bare cast iron, the durability and aesthetic appeal justify the investment for home bakers who appreciate design alongside function.
Check Current Price on Amazon →Smithey Cast Iron 10-Inch Skillet
Best for: New cast iron users seeking superior surface finish and ease of use
Smithey hand-finishes each skillet to a mirror-smooth cooking surface smoother than vintage or standard new cast iron. This polished finish dramatically reduces sticking and makes the learning curve gentler for cast iron newcomers. The quality rivals vintage pieces but arrives ready to use, making it ideal for sourdough bakers who want reliable performance without the guesswork.
Check Current Price on Amazon →Start Baking Sourdough Discard Cinnamon Rolls Today
Sourdough discard cinnamon rolls bridge the gap between zero-waste baking and indulgent treats. You’re not wasting your starter; you’re transforming it into something your family will request again and again. A good cast iron skillet is the only specialized tool you truly need–it’s a piece that will outlast trends and serve your kitchen for decades while developing a beautiful seasoning that only improves with time.
The magic happens in that final 18-24 minutes when the skillet’s residual heat caramelizes the dough’s edges while the oven’s heat cooks the centers through. You’ll pull out rolls that smell like a professional bakery and taste infinitely better than anything store-bought. Whether you’re an experienced sourdough baker looking to use discard creatively or someone new to both sourdough and cast iron cooking, this recipe delivers impressive results with minimal complexity.
Frequently Asked Questions
Do I need to feed my sourdough starter before using discard?
No. Regular unfed discard works perfectly for this recipe and actually produces slightly less sour rolls. If your discard has been sitting at room temperature for hours and is bubbly and active, use it as-is. The fermentation time during rising provides enough leavening for fluffy rolls.
Can I make these rolls ahead and refrigerate them?
Yes. After rolling and cutting, place rolls on a parchment-lined tray, cover loosely, and refrigerate for up to 8 hours. Remove them to room temperature 30-45 minutes before baking, or add 5-10 minutes to the bake time if baking straight from cold.
Why do my rolls spread too thin instead of rising?
This usually means your sourdough discard was too wet or your flour measurement was off. Discard consistency varies–start with less flour and add gradually until dough is soft but holds shape. Also ensure your rise time is sufficient; sourdough rises slower than commercial yeast dough.
Can I use a regular baking pan instead of cast iron?
You can, but cast iron produces superior caramelization and crust color. Glass or ceramic pans work fine, though you’ll need to grease them first and won’t get the same golden edges. If using glass, reduce oven temperature by 25 degrees to prevent over-browning.
What can I do with leftover cinnamon rolls?
Store cooled rolls in an airtight container at room temperature for 2 days, or refrigerate for up to 5 days. Reheat gently in a 300-degree oven for 10 minutes. Rolls also freeze well for up to 3 months–wrap individually and thaw at room temperature before reheating.
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